<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .box{
            width: 100%;
            height: 100%;
            background-color: white;
        }
        .small_box{
            width: 250px;
            text-align: center;
            position: absolute;
            left: 50%;
            top:50%;
            transform: translate(-50% ,-50%);
        }
        img{
            width: 250px;
        }
        p{
            margin-top: 4px;
            font-size: 24px;
            color:#ccc;
        }

    </style>
</head>

<body>
<div class='box'>
    <div class='small_box'>
        <img src="./img/netless.png" alt="">
        <p>网络异常</p>
    </div>
</div>
</body>

</html>